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Ryan Lawnaire IV Plus 19" 205cc (Briggs) Walk Behind Aerator

Model: Lawnaire IV Plus 19" Briggs  |  Item Number: 544909D
 - 4.00 Stars - Based on 2 Review(s)
Reg. Price: Sold Out Sold Out
CARB Compliant Power Equipment

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Features for the Ryan Lawnaire IV Plus 19" Briggs

Get all the power you need to make your lawn healthy with this Ryan Lawnaire IV Plus with a Briggs & Stratton engine that offers up to 205 cc of power. A throttle located on the operator handle offers convenience and the vibration reducing grip allows for longer operation times. Day to day use is possible with the rugged heavy duty construction. 30 hardened steel tines spread along a 19 inch working width help you cover 29,000 square feet in an hour. And a fold down handle makes storage and transportation convenient and easy.

  • Briggs & Stratton Intek 900: Get your work done faster with the powerful Briggs & Stratton Intek engine that offers up to 205 cc.
  • Removable Weights: Add more weight for deeper aeration with removable weights or easily remove them for loading and unloading.
  • Easy and Comfortable Operation: Throttle located on the operator handle for convenience and vibration reducing grip for longer operation periods.
  • Self-Propelled: Designed for ease of use and maneuverability during use and while loading/unloading.
  • Tines: Improve your soil conditions with the 30 3/4 hollow, austemper-hardened steel tines.
  • Heavy Duty Construction: Rugged heavy duty design is built for day-to-day use in any working condition.
  • Fold Down Handle: Fold the handle down for transportation and storage to take up less space.
  • Productivity: This aerator can cover 29,000 square feet an hour to get your job done faster. Aerate in a pattern of 3.75 inches x 7 inches.
  • Covered Lift Grips and Front Bumper Guard: Easier lifting and convenient tie down locations are offered by the covered lift grips and front bumper guard.
  • Water Drum: Fill the built in water drum for better aeration into harder soil.
  • Warranty: 2 year limited warranty.

This product may contain chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. For more information, go to

Technical Specs for the Ryan Lawnaire IV Plus 19" Briggs*

Engine Brand Briggs & Stratton Intek
Displacement(cc) 205 cc
Fuel Capacity 0.73 gallons
Oil Capacity 0.63 quarts

Working Depth 2.75 inches
Working Width 19 inches

Length (in.) 53.5 inches
Width (in.) 28 inches
Height (in.) 48.8 inches (handles unfolded)
Weight (lbs.) 214 lbs

Residential Warranty 2 years

Engine 4-Cycle

Drive System
Tire Size (2) 8 x 2.25 semi-pneumatic w/ ball bearings

* These Technical Specs are provided by the manufacturer at the beginning of the model year. Please be aware that the manufacturer may decide to change these specs at any given time without notice.

Reviews for the Lawnaire IV Plus 19" Briggs

Review Rating: Sort By:

Reviewed on   -   Purchased on 10/2/2020
Met product expectations but was extremely disappointed on the time it took to receive the product. If it was not in stock when ordered, notification should have been communicated which was not the case. Jacks dropping the ball on this.
Reviewed on   -   Purchased on 9/11/2020
Works perfectly

Q & A for the Ryan Lawnaire IV Plus 19" Briggs

Ask us about the Ryan Lawnaire IV Plus 19" 205cc (Briggs) Walk Behind Aerator. Please no repair questions. Your Q&A may be posted to to help other shoppers, like you, with their purchasing decisions. Thank you.

Asked on 1/20/2017 1:31:15 PM by Mike
I am wanting to rent this piece of equipment from a local rental company. Unfortunately the company could not tell me the diameter of each tyne or the spacing on center for the tynes. I need to have these specifications so that I can determine the volume of soil being removed per square foot so that I can determine how much top-dress to use after removing the plugs. I appreciate your help and am looking forward to trying this product.

Hi Mike, here are the specifications of the tines for the Ryan 544909 aerator:
Tines 3/4” (19 mm) formed from .08” hardened
chrome molybdenum alloy steel, 30 per unit
Penetration Depth 2 3/4” (70 mm) max
Swath Width 19” (483 mm)
Hole Pattern 3 3/4” x 7” (95 x 178 mm) on center